Flow - Merge Writer Document (not mail!) / Which settings in Flow??

Flow - Merge Writer Document (not mail!) / Which settings in Flow??

Hi,

I have created a flow CRM - Writer. In the output I get en error.
Zoho Writer says "Invalid parameter values found. Please try again with supported values."

I cant figur out what I did wrong. In the settings for writer I dont know which paramter I should put for "Folder ID".
Can anyone help?
Thank you
KR,